{
    "tender_id": 3396465,
    "check": {
        "ok": true,
        "versions": 2,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-26T12:16:12Z",
            "content": "{\"url\": \"https://abruko.ezamawiajacy.pl/pn/abruko/demand/notice/public/240285/details\", \"buyer\": \"Abruko Sp. z o.o.\", \"title\": \"„Sukcesywna dostawa materiałów budowlanych w roku 2027”.\", \"source\": \"abruko_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240285\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T10:37:00Z\"}",
            "content_hash": "fed3c510ff1b7282be64dd95d84866533596618458ee63ddacc2685763adb06a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7de2584460d2517478e4773493385812237becec1ff2b336e8ffd53b88e1fc10",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:36:20Z",
            "content": "{\"url\": \"https://abruko.ezamawiajacy.pl/pn/abruko/demand/notice/public/240285/details\", \"buyer\": \"Abruko Sp. z o.o.\", \"title\": \"„Sukcesywna dostawa materiałów budowlanych w roku 2027”.\", \"source\": \"abruko_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240285\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T10:37:00Z\", \"procedure_url\": \"https://abruko.ezamawiajacy.pl/pn/abruko/demand/notice/public/240285/details\"}",
            "content_hash": "e23fe9196e61929e72530de1d4bc7cea338217703fac76491dee43f4b7b79721",
            "prev_hash": "7de2584460d2517478e4773493385812237becec1ff2b336e8ffd53b88e1fc10",
            "hash": "d6cb6db1a346cae207d4bedca7a6f1ab145f9647c3d6e41ec0a045c1e955a32a",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}